Your Query returns 10 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
NG2NM_01938910090hdf    PG-M(V0)    PG-M(V1)    9430051N09    Cspg2    601172
NG2NM_13900110090AN2    4732461B14Rik    Cspg4    601172
NG2NM_019403100902410131O05Rik    Rnf5    601172
NG2NM_0018979606MCSP    MCSPG    MSK16    MEL-CSPG    CSPG4    601172
NG2BC01644910090Rnf5    601172
ng2NG_0003407227ng    ng-2    CG14266    CT33888    EG:96G10.4   
NG2AF03000110090601172
ng2AE0034267227
ng2NC_0043547227ng    ng-2    CG14266    EG:96G10.4   
ng2NM_0575937227ng    ng-2    CG14266    EG:96G10.4   

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002